Not a fan of Feebas and Milotic appearing again. I do like the Feebas-line, but I'd like to see some fresh faces. Maybe the Seel-line or Shellder -line instead? Making sure that Pokemon that has not been in a lot of Regional Dexes gets some spotlight as well, instead of including the same Pokemon we saw last gen, appear again. Of course, you could say that I don't need to use Milotic, but I'm pretty sure trainers will be using Milotic, and I'd just rather see old faces return then to see "new faces" return.
I'd switch the Psyduck-line, Mantyke-line, Wingull-line and Remoraid-line with the Krabby-line, Corphish-line, Clamperl-line, Qwilfish & Corsola, Spheal-line etc, in a matter of seconds. Such a shame really, at least with the Water Pokemon, considering the Water type has the most Pokemon to pick from, and we get the Psyduck-line and Wingull-line again instead of the Krabby-line and Spheal-line.